The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina 9
... places or even lives under the water . We are here concerned only with the kinds which bring up earth to the surface in the form of cast- ings . Hoffmeister says that the species in Germany are not well known , but gives the same number ...
... places or even lives under the water . We are here concerned only with the kinds which bring up earth to the surface in the form of cast- ings . Hoffmeister says that the species in Germany are not well known , but gives the same number ...
Pagina 11
... places may be seen covered with castings after the heavy autumnal rains . Although most cop- pices and woods support many worms , yet in a forest of tall and ancient beech - trees in Knole Park , where the ground beneath was bare of all ...
... places may be seen covered with castings after the heavy autumnal rains . Although most cop- pices and woods support many worms , yet in a forest of tall and ancient beech - trees in Knole Park , where the ground beneath was bare of all ...
Pagina 12
... places rare ; and this may perhaps be due to the close proximity of the sub- jacent rocks , into which worms cannot burrow during the winter so as to escape being frozen . Dr. McIntosh , however , found worm - castings at a height of ...
... places rare ; and this may perhaps be due to the close proximity of the sub- jacent rocks , into which worms cannot burrow during the winter so as to escape being frozen . Dr. McIntosh , however , found worm - castings at a height of ...
Pagina 14
... place in a length of sixteen paces . From the facts above given , it is not probable that these worms could have been drowned , and if they had been drowned they would have perished in their burrows . I believe that they were already ...
... place in a length of sixteen paces . From the facts above given , it is not probable that these worms could have been drowned , and if they had been drowned they would have perished in their burrows . I believe that they were already ...
Pagina 28
... places where worms abounded , but not one emerged . When , however , the ground is dug with a fork and is violently disturbed beneath a worm , it will often crawl quickly out of its burrow . The whole body of a worm is sensitive to ...
... places where worms abounded , but not one emerged . When , however , the ground is dug with a fork and is violently disturbed beneath a worm , it will often crawl quickly out of its burrow . The whole body of a worm is sensitive to ...
Alte ediții - Afișează-le pe toate
Darwin on Humus and the Earthworm: The Formation of Vegetable Mould Through ... Charles Darwin Vizualizare fragmente - 1966 |
Termeni și expresii frecvente
9 inches accumulated acetic acid acid action of worms alimentary canal amount angles animals apex apical appears basal base Beaulieu Abbey beneath the surface broken buried burnt marl burrows cent chalk cinders close concrete covered depth diameter disintegration dragged drawn earth feet field flints floor formed fragments gizzards glands grass ground heavy rain Hensen holes hypocausts Illustrations inches beneath inches deep inches in length inches in thickness inches thick intestines Joyce Knole Park lamellæ land large number larvæ layer leaf leaves Leith Hill Place lime Maer Hall manner matter mortar mouths nearly northern room objects observed particles pasture pavement penetrated petioles pharynx pine-leaves places ploughed plugging pots probably Roman villa rubbish sand seen seized side Silchester slope soil species square yard Stonehenge stones subsided swallowed tesselated tiles tips trench triangles triturated turf undisturbed upper vegetable mould walls washed weather weight whilst worm-castings worms
Pasaje populare
Pagina 322 - OUTINGS AT ODD TIMES. By CHARLES C. ABBOTT, author of " Days out of Doors " and " A Naturalist's Rambles about Home." i6mo. Cloth, gilt top, $1.25. " A charming little volume, literally alone with Nature, for it discusses seasons and the fields, birds, etc., with the loving freedom of a naturalist born. Every page reads like a sylvan poem; and for the lovers of the beautiful in quiet...